Amity: Difference between revisions

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'''Amity''' (from "acute minor third"), 46 & 53, is a complex temperament splitting 8/3 into 5 supraminor thirds about 339c-340c in size. Its 11 and 13 mappings tend to be flat due to tempering out S11 and S13.
'''Amity''' (from "acute minor third"), {{e|46}} & {{e|53}}, is a complex [[7-limit]] temperament splitting 8/3 into 5 supraminor thirds about 339c-340c in size. It has a tuning that is very accurate in the 7-limit (namely [[99edo]]).


Amity is a 7-cluster temperament due to its generator being only slightly flatter than 2\7.
Amity is a 7-cluster temperament due to its generator being only slightly flatter than 2\7.
== Interval chain ==
== Interval chain ==
(Note: 243/200 is 6/5 sharpened by 81/80)
Notes:
* 1 gen = 128/105 ~ 243/200 ~ 39/32 ~ 11/9 (=> tempers out 5120/5103 = S8/S9 and 4096/4095 = S64)
* 243/200 is 6/5 sharpened by 81/80.
* 2 gens = 40/27
* The extension to 13 given is called Hitchcock, whose 13 mapping tends to be flat due to tempering out S13.
* 3 gens = 9/5
<br/>
* 4 gens = 35/32 ~ 12/11 ~ 11/10
* 5 gens = '''4/3'''
* 6 gens = '''13/8''' ~ 21/13 (=> S13 is tempered out)
* 7 gens = 2/1 complement of 81/80 ~ 64/63 ~ 65/64
* 8 gens = 6/5
* 9 gens = '''16/11''' ~ 22/15 (=> S11 is tempered out)
* 10 gens = '''16/9'''
* 11 gens = 13/12 ~ 14/13
* 12 gens = 21/16
* 13 gens = '''8/5'''
* 14 gens = 2/1-complement of 36/35 ~ 33/32
* 15 gens = 32/27 ~ 13/11
* 16 gens = 36/25 ~ 13/9
* 17 gens = '''7/4'''
* 18 gens = '''16/15'''
* 19 gens = 13/10
* 20 gens = 128/81
* 21 gens = 2/1 complement of 21/20 ~ 22/21 ~ 25/24
* 22 gens = 7/6
* 23 gens = 64/45
* 24 gens = 26/15
* 25 gens = 256/243
* 26 gens = 32/25 ~ 14/11
* 27 gens = 14/9


{| class="wikitable"
!|# gens up !! 13-lim. interpretation !! Notes
|-
!|1
||128/105 ~ 243/200 ~ 39/32||tempers out 5120/5103 = S8/S9 and 4096/4095 = S64
|-
!|2
||40/27||
|-
!|3
||9/5||
|-
!|4
||35/32||
|-
!|5
||'''4/3'''||
|-
!|6
||'''13/8''' ~ 21/13||S13 is tempered out
|-
!|7
||80/81 ~ 63/64 ~ 64/65||
|-
!|8
||6/5||
|-
!|9
||48/35||
|-
!|10
||'''16/9'''||
|-
!|11
||13/12 ~ 14/13||
|-
!|12
||21/16||
|-
!|13
||'''8/5'''||
|-
!|14
||35/36||
|-
!|15
||32/27||
|-
!|16
||36/25 ~ 13/9||
|-
!|17
||'''7/4'''||
|-
!|18
||'''16/15'''||
|-
!|19
||13/10||
|-
!|20
||128/81||
|-
!|21
||20/21 ~ 24/25||
|-
!|22
||7/6||
|-
!|23
||64/45||
|-
!|24
||26/15||
|-
!|25
||256/243||
|-
!|26
||32/25||
|-
!|27
||14/9||
|}
== List of patent vals ==
:''Main article: [[Amity/Patent vals]]''
{{Navbox regtemp}}
{{Navbox regtemp}}
{{Cat|temperaments}}
{{Cat|temperaments}}

Latest revision as of 23:21, 29 May 2026

Amity (from "acute minor third"), ​46 & ​53, is a complex 7-limit temperament splitting 8/3 into 5 supraminor thirds about 339c-340c in size. It has a tuning that is very accurate in the 7-limit (namely 99edo).

Amity is a 7-cluster temperament due to its generator being only slightly flatter than 2\7.

Interval chain

Notes:

  • 243/200 is 6/5 sharpened by 81/80.
  • The extension to 13 given is called Hitchcock, whose 13 mapping tends to be flat due to tempering out S13.


# gens up 13-lim. interpretation Notes
1 128/105 ~ 243/200 ~ 39/32 tempers out 5120/5103 = S8/S9 and 4096/4095 = S64
2 40/27
3 9/5
4 35/32
5 4/3
6 13/8 ~ 21/13 S13 is tempered out
7 80/81 ~ 63/64 ~ 64/65
8 6/5
9 48/35
10 16/9
11 13/12 ~ 14/13
12 21/16
13 8/5
14 35/36
15 32/27
16 36/25 ~ 13/9
17 7/4
18 16/15
19 13/10
20 128/81
21 20/21 ~ 24/25
22 7/6
23 64/45
24 26/15
25 256/243
26 32/25
27 14/9

List of patent vals

Main article: Amity/Patent vals